PR #49037 (projects paradigm) broke the folder->session->sidebar flow (#53004):
- The right sidebar's Files pane gated the tree on $currentCwd, which is ''
for global/detached sessions, so those sessions hit a dead-end 'No project
open' pane with no way back into a folder. Restore an affordance in the
empty state: 'Open folder' runs the existing open-folder-as-project flow
(upsert + enter project + fresh session anchored at the picked folder),
decoupled from $currentCwd.
- The sidebar overview listed every auto-promoted repo on disk, session or
not. Auto projects with zero sessions now stay out of the sidebar until
they own a session (they reappear the moment work lands there); explicit
projects and the Home bucket always render.
UI-affecting: coordinator should hold auto-merge for visual review.
Fixes#53004
fc4d0e616d